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Added multiple windows to threads test.

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This commit is contained in:
Camilla Berglund 2012-08-13 19:37:39 +02:00
parent 18a5aba8f1
commit 86bcfb3e4e
1 changed files with 57 additions and 20 deletions
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67
tests/threads.c
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@ -33,25 +33,36 @@
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <assert.h>
#include "tinycthread.h"
typedef struct
{
GLFWwindow window;
const char* title;
float r, g, b;
thrd_t ID;
} Thread;
static volatile GLboolean running = GL_TRUE;
static int thread_start(void* data)
{
GLFWwindow window = (GLFWwindow) data;
const Thread* thread = (const Thread*) data;
glfwMakeContextCurrent(thread->window);
assert(glfwGetCurrentContext() == thread->window);
glfwMakeContextCurrent(window);
glfwSwapInterval(1);
while (running)
{
const float red = (float) sin(glfwGetTime()) / 2.f + 0.5f;
const float v = (float) fabs(sin(glfwGetTime() * 2.f));
glClearColor(thread->r * v, thread->g * v, thread->b * v, 0.f);
glClearColor(red, 0.f, 0.f, 0.f);
glClear(GL_COLOR_BUFFER_BIT);
glfwSwapBuffers(window);
glfwSwapBuffers(thread->window);
}
glfwMakeContextCurrent(NULL);
@ -60,34 +71,60 @@ static int thread_start(void* data)
int main(void)
{
int result;
GLFWwindow window;
thrd_t thread;
int i, result;
Thread threads[] =
{
{ NULL, "Red", 1.f, 0.f, 0.f, 0 },
{ NULL, "Green", 0.f, 1.f, 0.f, 0 },
{ NULL, "Blue", 0.f, 0.f, 1.f, 0 }
};
const int count = sizeof(threads) / sizeof(Thread);
if (!glfwInit())
{
fprintf(stderr, "Failed to initialize GLFW: %s\n", glfwErrorString(glfwGetError()));
fprintf(stderr, "Failed to initialize GLFW: %s\n",
glfwErrorString(glfwGetError()));
exit(EXIT_FAILURE);
}
window = glfwCreateWindow(640, 480, GLFW_WINDOWED, "Multithreading", NULL);
if (!window)
for (i = 0; i < count; i++)
{
fprintf(stderr, "Failed to open GLFW window: %s\n", glfwErrorString(glfwGetError()));
threads[i].window = glfwCreateWindow(200, 200,
GLFW_WINDOWED,
threads[i].title,
NULL);
if (!threads[i].window)
{
fprintf(stderr, "Failed to open GLFW window: %s\n",
glfwErrorString(glfwGetError()));
exit(EXIT_FAILURE);
}
if (thrd_create(&thread, thread_start, window) != thrd_success)
glfwSetWindowPos(threads[i].window, 200 + 250 * i, 200);
if (thrd_create(&threads[i].ID, thread_start, threads + i) !=
thrd_success)
{
fprintf(stderr, "Failed to create secondary thread\n");
exit(EXIT_FAILURE);
}
}
while (running)
{
assert(glfwGetCurrentContext() == NULL);
while (!glfwGetWindowParam(window, GLFW_CLOSE_REQUESTED))
glfwWaitEvents();
for (i = 0; i < count; i++)
{
if (glfwGetWindowParam(threads[i].window, GLFW_CLOSE_REQUESTED))
running = GL_FALSE;
thrd_join(thread, &result);
}
}
for (i = 0; i < count; i++)
thrd_join(threads[i].ID, &result);
exit(EXIT_SUCCESS);
}